Teacher professional learning is often disjointed and not aligned with the curricula teachers use in daily instruction. This lack of preparation has led to fragmented approaches to teaching young students to read, in part because initiatives lose momentum, teachers modify the instruction beyond recognition, and programs are soon eclipsed by newer…

Professional athletes spend hours honing their skills through video analysis; attorneys video themselves practicing opening arguments or coaching clients; plumbers, mechanics, and electricians video their craft to demonstrate their work. It could be argued that teachers' interactions have more long-term impact than any other professional skill,…